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Subject: mocri sherinkage and prosity defect around the neck in production piston

Date: 10/30/02 at 6:55 PM
Posted by: m.samet
E-mail: mehrdad_samet@hotmail.com
Message Posted:

In Reply to: Re: gating system posted by Darshan singh on 07/15/01 at 6:02 AM:

anyexperts know about how to remove these defect help me.we can see these defects after machinery.die & pouring temperture are 230-270 & 730-750 (c),chemical copostion ,Si=12.5-113.2%,Cu=0.8-1.5%,Ni=0.8-1.3%,Mg=0.8-1.3%,Fe=0.8%(max)

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